<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>this显式绑定实验</title>
</head>
<body>
    <script>
        var obj = {
            name: "gkd"
        };
        function foo() {
            console.log("foo函数:", this);
        }
        foo.call(obj);
        foo.call(123);
        foo.call("abc");
    </script>
</body>
</html>